An integrated stamping die for automobiles

Abstract

The present invention relates to the technical field of stamping dies, and specifically to an integrated automotive stamping die; it comprises a die base, a lower die is fixedly mounted on the upper end of the die base; a mounting frame is arranged above the lower die; the mounting frame is fixedly connected to the die base via a support rod; a pressing plate is arranged between the mounting frame and the lower die; the pressing plate is fixedly connected to the mounting frame via a hydraulic cylinder; the present invention provides a fixing clamp so that the fixing clamp can cooperate with the clamping plate to clamp the sheet material, so that the sheet material clamped by the clamping plate and the fixing clamp can remain stable under the stamping of the upper die and the lower die, avoiding the problem of movement, thereby improving the accuracy of the surface contour of the sheet material after stamping, and further, when stamping a thicker sheet material, there is no need to increase the residual amount of the residual edge, thereby reducing the waste of raw materials, which not only improves the utilization rate of the raw materials, but also reduces the production cost; the practicality of the present invention is improved.

Description

Technical Field

[0001] The invention relates to the technical field of stamping dies, in particular to an integrated stamping die for automobiles. Background Art

[0002] Stamping dies are special process equipment used to process materials into parts or semi-finished products during stamping. They are also called cold stamping dies. Cold stamping is a pressure processing method that uses a die installed on a press to apply pressure to the material at room temperature, so that the material is separated or plastically deformed during the closing process of the top die and the bottom die, thereby obtaining the required parts. Nowadays, in the automobile production process, one-piece stamping forming technology is often used to process parts such as automobile bodies, that is, one-piece stamping die is used. In a single stamping operation, a large steel plate or aluminum plate is stamped into the shape of the entire automobile part. Compared with the traditional process steps that require multiple stamping and welding, the one-piece stamping forming technology integrates multiple stamping processes into the same die, which not only improves production efficiency, but also reduces material waste and labor costs, while ensuring the accuracy and quality of parts; it is widely used in modern automobile manufacturing, realizing the needs of rapid automobile production and high quality;

[0003] When the existing stamping die is used to stamp the sheet in an integrated manner, the sheet needs to be placed on the upper end of the lower die. However, the upper end of the lower die is mostly in the shape of a convex die, which causes one end of the sheet to be tilted when placed on the upper end of the lower die. In order to prevent the sheet from sliding off the upper end of the lower die, only a baffle is used to limit the sheet placed on the upper end of the lower die. However, the sheet moves or twists slightly during the stamping process, resulting in deviation of the stamping position. Therefore, it is necessary to leave enough margins to provide additional support area to help stabilize the position and positioning of the sheet, thereby reducing the movement or twisting of the sheet during the stamping process.

[0004] However, plates of different thicknesses and sizes are subjected to different gravity, and their own material hardness and elastic properties are also different, so the warping of plates of different thicknesses and sizes on the same lower die will also be different; when stamping plates of different thicknesses, the higher the warping height of the plate, the worse the stability of the plate during the stamping process. In order to effectively deal with the movement problem caused by the warping of the plate, it is necessary to increase the residual margin; and the increase in the residual margin will lead to a waste of raw materials, which not only reduces the utilization rate of raw materials, but also increases production costs;

[0005] In view of this, in order to overcome the above technical problems, the present invention proposes an integrated automobile stamping die to solve the above technical problems. Summary of the invention

[0006] In order to make up for the shortcomings of the prior art, the present invention proposes an integrated automobile stamping part mold. The present invention arranges a fixing clamp so that the fixing clamp can cooperate with a clamping plate to clamp the plate, so that the plate clamped by the clamping plate and the fixing clamp can remain stable under the stamping of the upper mold and the lower mold to avoid the problem of movement, thereby improving the accuracy of the surface contour of the plate after stamping. Furthermore, when stamping thicker plates, there is no need to increase the remaining amount of the residual edge, thereby reducing the waste of raw materials, which not only improves the utilization rate of raw materials, but also reduces production costs; the practicality of the present invention is improved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: an integrated automobile stamping die according to the present invention comprises:

[0008] A mold base, wherein a lower mold is fixedly mounted on the upper end of the mold base; a mounting frame is arranged above the lower mold; the mounting frame is fixedly connected to the mold base through a support rod; a pressing plate is arranged between the mounting frame and the lower mold; the pressing plate is fixedly connected to the mounting frame through a hydraulic cylinder; an upper mold is fixedly mounted on a side of the pressing plate close to the lower mold; the pressing plate is slidably connected to the support rod,

[0009] A fixing clamp, an installation groove is provided at the upper end of the lower mold; a hydraulic push rod is fixedly installed in the installation groove; a slider is fixedly connected to the upper end of the hydraulic push rod; a through groove is provided on the surface of the slider; a slide rod is slidably connected in the through groove; the fixing clamp is fixedly connected to one end of the slide rod; a push spring is sleeved on the end of the slide rod away from the fixing clamp; one end of the push spring is connected to the slide rod, and the other end is connected to the slide rod; an electromagnetic ring is inlaid on the end of the slide rod close to the push spring; a storage groove opposite to the installation groove is provided at the lower end of the upper mold; a distance sensor is inlaid at the lower end of the lower mold.

[0010] Preferably, a clamping plate is provided below the fixing clamp; the clamping plate is rotatably connected to the fixing clamp via a torsion spring; a sliding groove is provided on the side wall of the mounting groove; the worm wheel is installed in the sliding groove; the worm wheel is rotatably installed on one side of the slider; a worm meshing with the worm wheel is provided below the worm wheel; a driving motor is fixedly installed inside the lower mold; the driving motor is used to drive the worm to rotate; a steel wire rope is provided between the worm wheel and the clamping plate; the worm wheel pulls the clamping plate to open through the steel wire rope.

[0011] Preferably, a strip groove is provided on one side of the fixing clamp; a traction rod is slidably connected in the strip groove; a traction spring is fixedly connected to the lower end of the traction rod; the end of the traction spring away from the traction rod is connected to the clamp; one end of the steel wire rope is connected to the surface of the worm gear, and the other end is fixedly connected to the upper end of the traction rod; a fixing unit is installed inside the fixing clamp; the fixing unit is used to fix the position of the traction rod in the strip groove.

[0012] Preferably, the fixing unit includes a fixing rod; a fixing groove connected to the bar groove is opened inside the fixing clamp; the fixing rod is slidably connected in the fixing groove; a convex groove is opened at one end of the fixing rod close to the connecting rod; the fixing rod and the fixing clamp are connected by a fixing spring.

[0013] Preferably, the fixing unit includes an insert rod; a slot is provided in the groove wall of the strip groove; the insert rod is slidingly and sealingly connected in the slot; the insert rod and the groove wall of the slot are connected by a reset spring; a groove is provided on a side of the fixing clamp away from the slider; a push plate is slidingly and sealingly connected in the groove; the groove and the groove wall of the slot are connected by an airway.

[0014] Preferably, circular grooves are provided on both sides of the fixing clamp; a rotating drum is rotatably connected in the circular groove; the worm gear is rotatably connected to the groove wall of the slide groove; a rectangular groove is provided on a side of the worm gear close to the rotating drum; a rectangular rod is slidably connected in the rectangular groove; the rectangular rod is connected to the bottom of the rectangular groove by a connecting spring; and an electromagnetic sheet is inlaid in the bottom of the rectangular groove.

[0015] Preferably, a corrugated airbag is fixedly mounted on the upper end of the slide groove; the upper end wall of the corrugated airbag is fixedly connected to the slider; and electromagnetic plates are embedded on the surfaces of the fixing clamp and the clamping plate that are close to each other.

[0016] Preferably, a protrusion is rotatably connected to a surface of the clamping plate and the fixing clamp that is close to each other; and the protrusion is made of silicone material.

[0017] The beneficial effects of the present invention are as follows:

[0018] The present invention provides a fixing clamp so that the fixing clamp can cooperate with the clamping plate to clamp the plate, so that the plate clamped by the clamping plate and the fixing clamp can remain stable under the stamping of the upper mold and the lower mold to avoid the problem of movement, thereby improving the accuracy of the surface contour of the plate after stamping, and further when stamping thicker plates, there is no need to increase the remaining amount of the residual edge, thereby reducing the waste of raw materials, which not only improves the utilization rate of the raw materials, but also reduces the production cost; the practicality of the present invention is improved.

[0019] The present invention provides an insertion rod so that the insertion rod can support the traction rod. Compared with the fixed rod, there is no need to provide a convex groove on the surface, thereby ensuring the stability of the surface structural strength of the insertion rod. Compared with the fixed rod, the insertion rod has greater structural strength, is not easy to break, and has a longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0021] Figure 1 is a stereogram of the present invention;

[0022] Figure 2 is a three-dimensional diagram of the lower mold used in the present invention;

[0023] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0024] Figure 4 is a transmission schematic diagram of the slide bar used in the present invention;

[0025] Figure 5 yes Figure 4 The enlarged view of point B in the middle;

[0026] Figure 6 is a schematic diagram of the structure of the fixing clip used in the present invention;

[0027] Figure 7 yes Figure 6 Enlarged view of point C in the middle;

[0028] Figure 8 It is a structural schematic diagram of a fixing clamp with a push plate installed in the present invention;

[0029] Fig. 9 yes Figure 8 The enlarged view of point D in the middle;

[0030] In the figure: 1. mold base; 11. lower mold; 12. mounting frame; 121. support rod; 13. pressing plate; 131. hydraulic cylinder; 14. upper mold; 141. storage tank; 15. distance sensor; 16. corrugated airbag; 2. mounting slot; 21. fixing clamp; 22. hydraulic push rod; 221. slider; 222. through slot; 223. slide rod; 224. push spring; 225. electromagnetic ring; 23. clamp; 24. slide slot; 241. worm gear; 242. worm; 243 , driving motor; 25, wire rope; 26, strip groove; 261, traction rod; 262, traction spring; 263, fixing rod; 264, fixing groove; 265, convex groove; 266, fixing spring; 27, circular groove; 271, rotating drum; 272, rectangular groove; 273, rectangular rod; 274, connecting spring; 275, electromagnetic sheet; 28, electromagnetic plate; 29, protrusion; 3, plug rod; 31, slot; 32, reset spring; 33, groove; 34, push plate; 35, airway. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] like Figures 1 to 9 As shown, the one-piece automotive stamping die of the present invention includes the following embodiments:

[0033] Embodiment 1, an integrated automobile stamping die, comprising:

[0034] A mold base 1, a lower mold 11 is fixedly mounted on the upper end of the mold base 1; a mounting frame 12 is arranged above the lower mold 11; the mounting frame 12 is fixedly connected to the mold base 1 through a support rod 121; a pressing plate 13 is arranged between the mounting frame 12 and the lower mold 11; the pressing plate 13 is fixedly connected to the mounting frame 12 through a hydraulic cylinder 131; an upper mold 14 is fixedly mounted on a side of the pressing plate 13 close to the lower mold 11; the pressing plate 13 is slidably connected to the support rod 121;

[0035] A fixing clamp 21, an installation groove 2 is provided at the upper end of the lower mold 11; a hydraulic push rod 22 is fixedly installed in the installation groove 2; a slider 221 is fixedly connected to the upper end of the hydraulic push rod 22; a through groove 222 is provided on the surface of the slider 221; a slide bar 223 is slidably connected in the through groove 222; the fixing clamp 21 is fixedly connected to one end of the slide bar 223; a push spring 224 is sleeved on the end of the slide bar 223 away from the fixing clamp 21; one end of the push spring 224 is connected to the slider 221, and the other end is connected to the slide bar 223; an electromagnetic ring 225 is inlaid on the end of the slider 221 close to the push spring 224; a storage groove 141 opposite to the installation groove 2 is provided at the lower end of the upper mold 14; a distance sensor 15 is inlaid on the upper end of the lower mold 11.

[0036] In this embodiment, a clamping plate 23 is arranged below the fixing clamp 21; the clamping plate 23 is rotatably connected to the fixing clamp 21 through a torsion spring; a sliding groove 24 is opened on the side wall of the mounting groove 2; the worm wheel 241 is installed in the sliding groove 24; the worm wheel 241 is rotatably installed on one side of the slider 221; a worm 242 meshing with the worm wheel 241 is arranged below the worm wheel 241; a driving motor 243 is fixedly installed inside the lower mold 11; the driving motor 243 is used to drive the worm 242 to rotate; a steel wire rope 25 is arranged between the worm wheel 241 and the clamping plate 23; the worm wheel 241 pulls the clamping plate 23 to open through the steel wire rope 25.

[0037] In this embodiment, a strip groove 26 is provided on one side of the fixing clamp 21; a traction rod 261 is slidably connected in the strip groove 26; a traction spring 262 is fixedly connected to the lower end of the traction rod 261; the end of the traction spring 262 away from the traction rod 261 is connected to the clamp 23; one end of the steel wire rope 25 is connected to the surface of the worm gear 241, and the other end is fixedly connected to the upper end of the traction rod 261; a fixing unit is installed inside the fixing clamp 21; the fixing unit is used to fix the position of the traction rod 261 in the strip groove 26.

[0038] In this embodiment, the fixing unit includes a fixing rod 263; a fixing groove 264 communicating with the strip groove 26 is provided inside the fixing clip 21; the fixing rod 263 is slidably connected in the fixing groove 264; a convex groove 265 is provided at one end of the fixing rod 263 close to the connecting rod; the fixing rod 263 and the fixing clip 21 are connected by a fixing spring 266;

[0039] During operation, plates of different thicknesses and sizes are subjected to different gravity, and their own material hardness and elastic properties are also different, so the warping of plates of different thicknesses and sizes on the same lower die will also be different; when stamping plates of different thicknesses, the higher the warping height of the plate, the worse the stability of the plate during the stamping process. In order to effectively deal with the movement problem caused by the warping of the plate, it is necessary to increase the residual amount of the residual edge; and the increase of the residual edge will lead to the waste of raw materials, which not only reduces the utilization rate of raw materials, but also increases production costs;

[0040] In this regard, the present invention sets a fixing clamp 21 so that the fixing clamp 21 can cooperate with the clamping plate 23 to clamp the plate, so that the plate clamped by the clamping plate 23 and the fixing clamp 21 can remain stable under the stamping of the upper mold 14 and the lower mold 11, avoiding the problem of movement, thereby improving the accuracy of the surface contour of the plate after stamping, and further, when stamping a thicker plate, there is no need to increase the residual amount of the residual edge, reducing the waste of raw materials, not only improving the utilization rate of raw materials, but also reducing the production cost; so that the practicality of the present invention is improved;

[0041] The user places the plate on the lower mold 11; since the upper end surface of the lower mold 11 is set to be a convex mold, this is because the design of the convex mold can integrate the positioning and supporting functions required for multiple processes, so that multiple stamping processes can be completed in the same mold, improving production efficiency and process accuracy; therefore, the plate placed on the upper end surface of the lower mold 11 will be tilted, and because the upper end of the lower mold 11 is fixedly installed with a limit plate and a positioning rod; the tilted plate is blocked by the limit plate and the positioning rod and will not slide from one side of the lower mold 11, so as to ensure that the tilted plate is located between the upper mold 14 and the lower mold 11, at this time, the distance sensor 15 is controlled to operate so that the distance sensor 15 can sense the position of the tilted end of the plate, And the height of the tilting, then first control the driving motor 243 to drive the worm 242 to rotate, so that the worm 242 can drive the worm wheel 241 meshing with it to rotate, so that the worm wheel 241 can drive the steel wire rope 25 connected to it to be wound around its surface, so that the traction rod 261 connected to the steel wire rope 25 can rise along the strip groove 26 under the pulling of the steel wire rope 25, because the traction rod 261 and the clamping plate 23 are connected through the traction spring 262, so that the traction rod 261 sliding along the strip groove 26 can stretch the traction spring 262 to extend, so that the traction spring 262 can generate a pulling force on the clamping plate 23, and because the clamping plate 23 is blocked by the bottom of the installation groove 2, the clamping plate 23 cannot rotate downward, The traction spring 262 is continuously extended; during the process of the traction rod 261 rising, the traction rod 261 will contact the end of the fixing rod 263 exposed from the strip groove 26, and the lower end surface of the end of the fixing rod 263 exposed from the strip groove 26 is set as a curved surface, so that the traction rod 261 can push the fixing rod 263 away from the strip groove 26 through the curved surface end of the fixing rod 263, so that the fixing rod 263 stretches the fixing spring 266 and moves away from the traction rod 261, and the curved surface end of the fixing rod 263 enters the fixing groove 264 until the traction rod 261 passes over the fixing rod 263. At this time, the fixing rod 263 extends out of the fixing groove 264 and enters the strip groove 26 under the push of the fixing spring 266, so that the fixing rod 263 passes The upper end surface supports the lower end surface of the traction rod 261; then the hydraulic push rod 22 near the tilted end of the plate is controlled to extend, so that the hydraulic push rod 22 can push the slider 221 to rise; during the rising process of the slider 221, the slider 221 will drive the worm wheel 241 to rise, so that the slider 221 drives the worm wheel 241 connected thereto to separate from the worm 242 on the one hand, and the slider 221 drives the fixing clamp 21 to rise through the sliding rod 223 on the other hand; during the rising process of the fixing clamp 21, the fixing clamp 21 will drive the clamping plate 23 connected thereto to rise synchronously; because the clamping plate 23 is subjected to the pulling force of the traction spring 262, the clamping plate 23 will overcome the torsion force of the torsion spring and rotate in the direction away from the fixing clamp 21;After the fixing clamp 21 rises to a height higher than the tilted height of the plate, the electromagnetic ring 225 is energized so that the electromagnetic ring 225 can absorb the end of the sliding rod 223 away from the fixing clamp 21, so that the end of the sliding rod 223 away from the fixing clamp 21 squeezes the push spring 224 close to the slider 221, so that the fixing clamp 21 connected to the sliding rod 223 moves toward the tilted end of the plate under the drive of the sliding rod 223, until the fixing clamp 21 passes over the tilted end of the plate, so that the tilted end of the plate can be located between the fixing clamp 21 and the clamping plate 23, and as the fixing clamp 21 drives the clamping plate 23 close to the plate, the plate will contact the fixing rod 263, so that the plate will push the fixing rod 263 to squeeze the fixing spring 266 close to the pulling rod Since the end of the fixing rod 263 close to the strip groove 26 is provided with a convex groove 265, the traction spring 262 moving relative to the fixing rod 263 can penetrate the convex groove 265. Since the width of the end of the convex groove 265 away from the fixing spring 266 is small, the traction rod 261 cannot pass through the smaller end of the convex groove 265. As the fixing rod 263 continues to move, until the fixing rod 263 drives the convex groove 265 close to the end of the fixing spring 266, that is, the larger end to the bottom of the traction rod 261, the traction rod 261 will pass through the convex groove 265 and descend under the pulling force of the traction spring 262, so that the traction spring 262 contracts and no longer exerts pressure on the clamping plate 23. The tension is added, so that the clamping plate 23 rotates in the direction close to the fixed clamp 21 under the action of the restoring force of the torsion spring, so that the clamping plate 23 rotates and contacts the lower end surface of the plate. At this time, the fixed clamp 21 and the clamping plate 23 cooperate to clamp the plate, and then the hydraulic push rod 22 is controlled to contract, so that the hydraulic push rod 22 can pull the raised end of the plate to move downward through the fixed clamp 21 and the clamping plate 23, so that the inclined plate can be turned to a horizontal state; similarly, the driving motor 243 on the other side is controlled to drive the wire rope 25 through the worm 242 and the worm gear 241 to pull the clamping plate 23 to open, and then the hydraulic push rod 22 is controlled to push the fixed clamp 21 to the plate, so that the fixed clamp 21 and the clamping plate 23 on the other side of the lower mold 11 clamp the plate. When the plate is pressed, both sides of the plate are clamped; the electromagnetic ring 225 is controlled to be powered off, and the slide bars 223 on both sides of the lower mold 11 are reset under the push of the push spring 224. At this time, the slide bars 223 pull the clamping plate 23 to move away from the plate, and the plate is in sliding contact with the fixed clamp 21 and the clamping plate 23 until the fixed clamp 21 and the clamping plate 23 move to the bottom of the storage slot 141 of the upper mold 14. At this time, the fixed clamp 21 and the clamping plate 23 are clamped at the residual edge of the plate; when the plate needs to be stamped, the hydraulic cylinder 131 is controlled to push the pressing plate 13 down, so that the pressing plate 13 drives the upper mold 14 at the lower end to approach the lower mold 11, so that the upper mold 14 contacts the plate, and the clamping plate 23 and the fixed clamp 21 enter the storage slot 141;At this time, the contraction speed of the hydraulic push rod 22 is controlled to be consistent with the extension speed of the hydraulic cylinder 131, so that during the lowering process of the upper mold 14, the horizontal plate pushed by the upper mold 14 can be close to the upper mold 14, so that the plate between the upper mold 14 and the lower mold 11 can be subjected to uniform punching force distribution, thereby preventing the plate from being deformed and twisted due to uneven stress, avoiding wrinkles and unevenness on the surface of the stamped plate, thereby improving the accuracy of the surface contour of the plate;

[0042] In the existing stamping dies, a fixing clamp 21 is also used to fix the plate on the lower die 11; however, the fixing method is mostly to fix the two sides of the plate on the upper end surface of the lower die 11. Since the middle part of the lower die 11 is a convex die, the plate will be supported and produce a certain bending deformation. In order to ensure the clamping effect of the clamp, it is necessary to leave more margins around the plate. The present invention clamps and supports the plate on the upper end of the lower die 11 in a horizontal plane state. This is because when the plate is accurately clamped between the upper die 14 and the lower die 11 and maintained in a horizontal state, the plate can be evenly supported. The uniform clamping force distribution helps to keep the sheet stable during the stamping process and reduce the risk of deformation. If the sheet is directly fixed on the lower die 11 and is in a bent or covered state, the clamp cannot provide sufficiently uniform support or clamping force. This can easily lead to local stress concentration in the sheet during the stamping process, thereby increasing the risk of deformation and movement of the sheet. Therefore, the present invention clamps the sheet and keeps it in a horizontal state for stamping, which can improve the stamping effect of the sheet, thereby improving the accuracy of the surface contour of the sheet after stamping, thereby effectively improving the practicality of the present invention.

[0043] In this embodiment, circular grooves 27 are provided on both sides of the fixing clamp 21; a rotating drum 271 is rotatably connected in the circular groove 27; the worm gear 241 is rotatably connected to the groove wall of the slide groove 24; a rectangular groove 272 is provided on the side of the worm gear 241 close to the rotating drum 271; a rectangular rod 273 is slidably connected in the rectangular groove 272; the rectangular rod 273 is connected to the bottom of the rectangular groove 272 by a connecting spring 274; and an electromagnetic sheet 275 is inlaid at the bottom of the rectangular groove 272.

[0044] In this embodiment, a corrugated airbag 16 is fixedly installed on the upper end of the slide groove 24; the upper end wall of the corrugated airbag 16 is fixedly connected to the slider 221; and the surfaces of the fixing clamp 21 and the clamping plate 23 that are close to each other are both inlaid with an electromagnetic plate 28.

[0045] In this embodiment, a protrusion 29 is rotatably connected to a side of the clamping plate 23 and the fixing clamp 21 that is close to each other; the protrusion 29 is made of silicone material;

[0046] During operation, if the slider 221 drives the worm wheel 241 to rise and go beyond the slide slot 24, the slide slot 24 is in an open state, which will cause impurities such as gravel or metal debris to enter the slide slot 24 and fall onto the worm 242. After the hydraulic push rod 22 is reset, the worm wheel 241 and the worm 242 are re-engaged. At this time, the impurities falling on the surface of the worm 242 will not only hinder the meshing of the worm wheel 241 and the worm 242, but also increase the meshing friction between the worm wheel 241 and the worm 242, thereby increasing the friction damage between the worm wheel 241 and the worm 242, and thus reducing the service life of the worm wheel 241 and the worm 242; in this regard, by the cooperation of the rectangular rod 273 and the rotating drum 271, in the initial state, the rotating drum The barrel cavity of the drum 271 is rectangular, and the rectangular rod 273 is inserted into the barrel cavity of the drum 271 under the push of the connecting spring 274. The end of the wire rope 25 away from the traction rod 261 is fixedly connected to the surface of the drum 271. Since the worm gear 241 is connected to the drum 271, when the driving motor 243 drives the worm gear 241 to rotate through the worm 242, the worm gear 241 drives the drum 271 to rotate through the rectangular rod 273, so that the drum 271 wraps the wire rope 25 around its surface. When it is necessary to control the extension of the hydraulic push rod 22, the electromagnetic sheet 275 is first controlled to be energized, so that the electromagnetic sheet 275 can absorb the rectangular rod 273 and squeeze the connecting spring 274 into the rectangular groove 272. At this time, the rectangular rod 27 3 extends out of the rotating drum 271, at which time the worm wheel 241 is separated from the rotating drum 271, so that when the hydraulic push rod 22 pushes the sliding block 221 to rise, the sliding block 221 will not drive the worm wheel 241 to extend out of the sliding groove 24, and by providing the corrugated airbag 16, the corrugated airbag 16 blocks the upper end of the sliding groove 24, thereby preventing foreign impurities such as gravel or metal debris from entering the sliding groove 24, which not only ensures that the worm wheel 241 and the worm 242 are always in a normal and stable meshing state, but also prevents impurities from causing wear to the worm wheel 241 and the worm 242, thereby increasing the service life of the worm wheel 241 and the worm 242, so that the practicality of the present invention is improved; when the sliding block 221 is pushed by the hydraulic push rod 22 When the rod 22 is pushed upward, the slider 221 drives the corrugated airbag 16 to extend; and when the hydraulic push rod 22 is lowered, the corrugated airbag 16 is compressed, so that the gas in the corrugated airbag 16 is ejected through the lower port, so that the ejected gas can blow the dust in the slide groove 24 out through the installation groove 2, thereby eliminating the need for staff to clean the slide groove 24, reducing the difficulty of cleaning the slide groove 24, and improving the practicality of the present invention; by setting the end of the installation groove 2 away from the fixing clamp 21 to penetrate one side of the lower mold 11, it is convenient for staff to push the dust in the installation groove 2 to be discharged from the side that penetrates the lower mold 11, reducing the difficulty of cleaning the installation groove 2, and improving the practicality of the present invention;

[0047] By setting the electromagnetic plate 28, and the magnetic forces of the two electromagnetic plates 28 on the sides of the clamp 23 and the fixing clamp 21 that are close to each other are opposite, the clamp 23 and the fixing clamp 21 can clamp the plate through the suction effect of the two electromagnetic plates 28 that are close to each other, thereby improving the clamping effect of the clamp 23 and the fixing clamp 21 on the remaining edge of the plate, and the setting of the silicone protrusion 29 increases the friction between the plate and the clamp 23 and the fixing clamp 21, so that the clamping force of the fixing clamp 21 and the clamp 23 on it is increased, further improving the clamping effect of the clamp 23 and the fixing clamp 21 on the plate; the plate can remain stable during the stamping process, thereby improving the stamping effect of the plate, and the accuracy of the surface contour of the plate after stamping, further improving the practicality of the present invention.

[0048] Embodiment 2 is different from Embodiment 1 in that:

[0049] The fixing unit comprises an insert rod 3; a slot 31 is provided in the slot wall of the strip groove 26; the insert rod 3 is slidably and sealedly connected in the slot 31; the insert rod 3 and the slot wall of the slot 31 are connected via a return spring 32; a groove 33 is provided on a side of the fixing clip 21 away from the slider 221; a push plate 34 is slidably and sealedly connected in the groove 33; the groove 33 and the slot wall of the slot 31 are connected via an air passage 35;

[0050] During operation, when the driving motor 243 drives the worm wheel 241 to rotate through the worm 242, the worm wheel 241 can drive the rotating drum 271 to rotate through the rectangular rod 273, so that the rotating drum 271 wraps the wire rope 25 around the rotating surface, so that the end of the wire rope 25 connected to the traction rod 261 pulls the traction rod 261 to stretch the traction spring 262 to rise and approach the insertion rod 3. Since the lower end surface of the insertion rod 3 is set as a curved end, the traction rod 261 pushes the insertion rod 3 through the curved end of the insertion rod 3 to squeeze the reset spring 32 into the slot 31 until the wire rope 25 passes over the insertion rod 3. At this time, the insertion rod 3 extends out of the slot 31 under the action of the restoring force of the reset spring 32, so that the insertion rod 3 can block the lower end surface of the traction rod 261; when the fixing clamp 21 approaches the plate, the plate pushes the push plate 34 into the groove 33, so that the groove The air in the groove 33 enters the slot 31 through the air passage 35 under the push of the push plate 34, so that the insertion rod 3 in the slot 31 squeezes the reset spring 32 under the push of the air and enters the slot 31, so that the insertion rod 3 no longer blocks the traction rod 261, so that the traction rod 261 can descend under the pull of the restoring force of the traction spring 262, so that the traction rod 261 can pass over the insertion rod 3 and continue to descend. At this time, the clamping plate 23 is reset under the action of the restoring force of the torsion spring and cooperates with the fixing clamp 21 to clamp the plate. The present invention provides the insertion rod 3 so that the insertion rod 3 can support the traction rod 261. Compared with the fixing rod 263, there is no need to open a convex groove 265 on the surface, so as to ensure the stability of the surface structural strength of the insertion rod 3, so that the insertion rod 3 has a greater structural strength than the fixing rod 263, is not easy to break, and has a longer service life.

[0051] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An integrated automotive stamping die, comprising: A mold base (1), wherein a lower mold (11) is fixedly mounted on the upper end of the mold base (1); a mounting frame (12) is arranged above the lower mold (11); the mounting frame (12) is fixedly connected to the mold base (1) via a support rod (121); a pressing plate (13) is arranged between the mounting frame (12) and the lower mold (11); the pressing plate (13) is fixedly connected to the mounting frame (12) via a hydraulic cylinder (131); an upper mold (14) is fixedly mounted on a side of the pressing plate (13) close to the lower mold (11); the pressing plate (13) is slidably connected to the support rod (121), and is characterized in that: The fixing clamp (21) is provided with a mounting groove (2) at the upper end of the lower mold (11); a hydraulic push rod (22) is fixedly installed in the mounting groove (2); a slider (221) is fixedly connected to the upper end of the hydraulic push rod (22); a through groove (222) is provided on the surface of the slider (221); a slide bar (223) is slidably connected in the through groove (222); the fixing clamp (21) is fixedly connected to one end of the slide bar (223); the slide bar (223) is remote from the fixing clamp (21); A push spring (224) is sleeved on one end of the fixing clamp (21); one end of the push spring (224) is connected to the slider (221), and the other end is connected to the slide bar (223); an electromagnetic ring (225) is embedded in one end of the slider (221) close to the push spring (224); a storage groove (141) facing the mounting groove (2) is formed at the lower end of the upper mold (14); and a distance sensor (15) is embedded in the lower end of the lower mold (11); A clamping plate (23) is arranged below the fixing clamp (21); the clamping plate (23) is rotatably connected to the fixing clamp (21) via a torsion spring; a sliding groove (24) is provided on the side wall of the mounting groove (2); a worm wheel (241) is installed in the sliding groove (24); the worm wheel (241) is rotatably installed on one side of the slider (221); a worm (242) meshing with the worm wheel (241) is arranged below the worm wheel (241); a driving motor (243) is fixedly installed inside the lower mold (11); the driving motor (243) is used to drive the worm (242) to rotate; a steel wire rope (25) is arranged between the worm wheel (241) and the clamping plate (23); the worm wheel (241) pulls the clamping plate (23) to open via the steel wire rope (25); A strip groove (26) is provided on one side of the fixing clamp (21); a traction rod (261) is slidably connected in the strip groove (26); a traction spring (262) is fixedly connected to the lower end of the traction rod (261); one end of the traction spring (262) away from the traction rod (261) is connected to the clamp (23); one end of the steel wire rope (25) is connected to the surface of the worm gear (241), and the other end is fixedly connected to the upper end of the traction rod (261); a fixing unit is installed inside the fixing clamp (21); the fixing unit is used to fix the position of the traction rod (261) in the strip groove (26); The fixing unit comprises a fixing rod (263); a fixing groove (264) communicating with the strip groove (26) is provided inside the fixing clamp (21); the fixing rod (263) is slidably connected in the fixing groove (264); a convex groove (265) is provided at one end of the fixing rod (263) close to the connecting rod; and the fixing rod (263) and the fixing clamp (21) are connected via a fixing spring (266).

2. An integrated automotive stamping die, comprising: A mold base (1), wherein a lower mold (11) is fixedly mounted on the upper end of the mold base (1); a mounting frame (12) is arranged above the lower mold (11); the mounting frame (12) is fixedly connected to the mold base (1) via a support rod (121); a pressing plate (13) is arranged between the mounting frame (12) and the lower mold (11); the pressing plate (13) is fixedly connected to the mounting frame (12) via a hydraulic cylinder (131); an upper mold (14) is fixedly mounted on a side of the pressing plate (13) close to the lower mold (11); the pressing plate (13) is slidably connected to the support rod (121), and is characterized in that: The fixing clamp (21) is provided with a mounting groove (2) at the upper end of the lower mold (11); a hydraulic push rod (22) is fixedly installed in the mounting groove (2); a slider (221) is fixedly connected to the upper end of the hydraulic push rod (22); a through groove (222) is provided on the surface of the slider (221); a slide bar (223) is slidably connected in the through groove (222); the fixing clamp (21) is fixedly connected to one end of the slide bar (223); the slide bar (223) is remote from the fixing clamp (21); A push spring (224) is sleeved on one end of the fixing clamp (21); one end of the push spring (224) is connected to the slider (221), and the other end is connected to the slide bar (223); an electromagnetic ring (225) is embedded in one end of the slider (221) close to the push spring (224); a storage groove (141) facing the mounting groove (2) is formed at the lower end of the upper mold (14); and a distance sensor (15) is embedded in the lower end of the lower mold (11); A clamping plate (23) is arranged below the fixing clamp (21); the clamping plate (23) is rotatably connected to the fixing clamp (21) via a torsion spring; a sliding groove (24) is provided on the side wall of the mounting groove (2); a worm wheel (241) is installed in the sliding groove (24); the worm wheel (241) is rotatably installed on one side of the slider (221); a worm (242) meshing with the worm wheel (241) is arranged below the worm wheel (241); a driving motor (243) is fixedly installed inside the lower mold (11); the driving motor (243) is used to drive the worm (242) to rotate; a steel wire rope (25) is arranged between the worm wheel (241) and the clamping plate (23); the worm wheel (241) pulls the clamping plate (23) to open via the steel wire rope (25); A strip groove (26) is provided on one side of the fixing clamp (21); a traction rod (261) is slidably connected in the strip groove (26); a traction spring (262) is fixedly connected to the lower end of the traction rod (261); one end of the traction spring (262) away from the traction rod (261) is connected to the clamp (23); one end of the steel wire rope (25) is connected to the surface of the worm gear (241), and the other end is fixedly connected to the upper end of the traction rod (261); a fixing unit is installed inside the fixing clamp (21); the fixing unit is used to fix the position of the traction rod (261) in the strip groove (26); The fixing unit comprises an insert rod (3); a slot (31) is provided in the slot wall of the strip groove (26); the insert rod (3) is slidably and hermetically connected in the slot (31); the insert rod (3) and the slot wall of the slot (31) are connected via a return spring (32); a groove (33) is provided on a side of the fixing clamp (21) away from the slider (221); a push plate (34) is slidably and hermetically connected in the groove (33); the groove (33) and the slot wall of the slot (31) are connected via an airway (35).

3. The one-piece automotive stamping die according to claim 1 or 2, characterized in that: Circular grooves (27) are provided on both sides of the fixing clamp (21); a rotating drum (271) is rotatably connected in the circular groove (27); the worm wheel (241) is rotatably connected to the groove wall of the sliding groove (24); a rectangular groove (272) is provided on a side of the worm wheel (241) close to the rotating drum (271); a rectangular rod (273) is slidably connected in the rectangular groove (272); the rectangular rod (273) is connected to the groove bottom of the rectangular groove (272) via a connecting spring (274); and an electromagnetic sheet (275) is inlaid at the groove bottom of the rectangular groove (272).

4. The one-piece automotive stamping die according to claim 3, characterized in that: A corrugated airbag (16) is fixedly mounted on the upper end of the slide groove (24); the upper end wall of the corrugated airbag (16) is fixedly connected to the slider (221); and an electromagnetic plate (28) is inlaid on the mutually adjacent sides of the fixing clamp (21) and the clamping plate (23).

5. The one-piece automotive stamping die according to claim 4, characterized in that: A protrusion (29) is rotatably connected to a surface of the clamping plate (23) and the fixing clamp (21) that is close to each other; the protrusion (29) is made of a silicone material.

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